freebsd-update fetch metadata failed

[mailinglist at modernbiztonsag.org]

Hi,

I've upgraded my 8.4-RELEASE system to 9.3-RELEASE-p12 a few days ago 
from source. Now I'm trying to use freebsd-update to fetch the latest 
9.3 patches, but it failes:

  freebsd-update fetch
Looking up update.FreeBSD.org mirrors... none found.
Fetching metadata signature for 9.3-RELEASE from update.FreeBSD.org... 
done.
Fetching metadata index... done.
Fetching 2 metadata files... failed.

I've used freebsd-update for 8.3 too without any problem. I've cleared 
the /var/db/freebsd-update directory, but got the same result. Does 
anyone have any idea what's happening here?

Best regards,
Mate